Hello MMD,  I have a bit of a predicament.  I removed the front board
on the second tier of striker pneumatics to check for debris and clean
the nickel tubing, when one of the nickel-plated copper (brass?) tubes
broke off of its base 'nipple connector'.

Is there anyway that I can reattach it?  Can I get this welded?  Also,
what's the best way to ensure that these tubes are still air-tight?

Thanks,
Joel Gauthier